CN218414769U

CN218414769U - Fixing device for lithium iron phosphate battery pack

Info

Publication number: CN218414769U
Application number: CN202222879754.1U
Authority: CN
Inventors: 王海侠; 高洪江; 刘涛
Original assignee: Shengyu Electric Co ltd
Current assignee: Shengyu Electric Co ltd
Priority date: 2022-10-31
Filing date: 2022-10-31
Publication date: 2023-01-31
Anticipated expiration: 2032-10-31

Abstract

The utility model discloses a fixing device for lithium iron phosphate group battery relates to battery technical field. A cavity is arranged in the box body; the ventilation structure is arranged in the cavity and comprises a first channel and a second channel, the first channel and the second channel are vertically crossed, the first channel is communicated with the second channel, and the first channel and the second channel are both provided with heat dissipation holes and ventilation holes; the cover plate is rotatably connected to the port of the box body, the cover plate can seal the port, and an opening is formed in the position, corresponding to the ventilation structure, of the cover plate; the blowing device is communicated with the ventilation structure and comprises a shell fixed on the outer side wall of the box body, a driving device fixed in the shell and a fan in transmission connection with the driving device, the air outlet end of the fan faces the ventilation structure, and an air inlet is formed in the shell at a position corresponding to the fan; thereby solved among the prior art problem that the fixing device of iron phosphate lithium cell group's radiating effect is not good.

Description

Fixing device for lithium iron phosphate battery pack

Technical Field

The utility model relates to a battery technology field, more specifically say, relate to a fixing device for lithium iron phosphate group battery.

Background

With the development of the new energy automobile industry and other related industries, the lithium battery is more and more widely used, and the structural requirement on the battery pack is higher and higher. The reliability of the grouping of the lithium batteries directly affects the service life and the safety performance of the lithium batteries, and under the condition that a large number of lithium batteries work, the heat dissipation becomes a very critical important factor affecting the performance of the batteries.

At present, the encapsulation of traditional group battery is compact type usually, for example, the general series-parallel mode of making up into the module when square aluminum hull electricity core is in groups, again encapsulates the shell outside the module, and current square aluminum hull electricity core is in groups the mode, what generally adopted is simple pile up the form, directly through electricity core shell direct contact between electricity core and the electricity core promptly. This kind of mode in groups is unfavorable for the heat management of battery module and electric core, along with electric core charge, the time that discharges increases, the temperature of battery module and electric core is higher and higher but unable effective heat dissipation, has reduced the life of electric core and has caused the potential safety hazard to a certain extent.

Therefore, how to solve the problem of poor heat dissipation effect of the fixing device of the lithium iron phosphate battery pack in the prior art becomes an important technical problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fixing device for lithium iron phosphate group battery is in order to solve the not good technical problem of fixing device's of lithium iron phosphate group battery among the prior art radiating effect. The utility model provides a plurality of technical effects that preferred technical scheme among a great deal of technical scheme can produce see the explanation below in detail.

In order to achieve the above purpose, the utility model provides a following technical scheme:

the utility model provides a fixing device for lithium iron phosphate group battery, include:

the battery pack storage box comprises a box body, wherein a cavity for placing a lithium iron phosphate battery pack is formed in the box body, one end of the box body is provided with a port, and the periphery of the box body is of a closed structure;

the ventilation structure is arranged in the cavity and comprises a first channel fixedly connected with two inner side walls opposite to the box body and a second channel fixedly connected with two inner side walls opposite to the other pair of the box body, the first channel and the second channel are vertically crossed and communicated, the upper end surfaces of the first channel and the second channel are provided with heat dissipation holes, and the peripheral side walls of the first channel and the second channel are provided with ventilation holes;

the cover plate is rotatably connected to the port of the box body and can seal the port, and an opening is formed in the part, corresponding to the ventilation structure, of the cover plate;

the blowing device is communicated with the ventilation structure and comprises a shell fixed on the outer side wall of the box body, a driving device fixed inside the shell and a fan in transmission connection with the driving device, the air outlet end of the fan faces the ventilation structure, and an air inlet is formed in the position, corresponding to the fan, of the shell.

On the basis of the technical scheme, the utility model discloses can also do following improvement.

Further, the first channel and the second channel are of an integrated structure.

Further, the driving device is a motor.

Furthermore, the vertex angle department of apron all is provided with the through-hole that is used for supplying the bolt to run through.

Furthermore, the vertex angle department of box up end all be provided with be used for with bolt matched with internal thread hole, and internal thread hole with the through-hole one-to-one sets up.

Furthermore, the box body is made of aluminum alloy.

The technical scheme provided by the application comprises the following beneficial effects:

the utility model provides a technical scheme, a fixing device for a lithium iron phosphate battery pack, which comprises a box body, a ventilation structure, a cover plate and a blowing device, wherein a cavity for placing the lithium iron phosphate battery pack is arranged in the box body, one end of the box body is provided with a port, and the periphery of the box body is of a closed structure; the ventilation structure is arranged in the cavity and comprises a first channel fixedly connected with two inner side walls opposite to the box body and a second channel fixedly connected with the other two inner side walls opposite to the other pair of the box body, the first channel and the second channel are vertically crossed and communicated, heat dissipation holes are formed in the upper end surfaces of the first channel and the second channel, and ventilation holes are formed in the peripheral side walls of the first channel and the second channel; the cover plate is rotatably connected to the port of the box body and can seal the port, and an opening is formed in the position, corresponding to the ventilation structure, of the cover plate; the blowing device is communicated with the ventilation structure and comprises a shell fixed on the outer side wall of the box body, a driving device fixed inside the shell and a fan in transmission connection with the driving device, the air outlet end of the fan faces towards the ventilation structure, and an air inlet is formed in the position, corresponding to the fan, of the shell. The battery pack is arranged in such a way that the cover plate is opened firstly, the battery pack is reasonably placed in a cavity formed by the box body and the ventilation structure, then the cover plate is closed, and the battery pack can be firmly fixed in the box body through the matching of the cover plate and the box body, so that the battery pack is fixedly protected; meanwhile, the blowing device is started, wind power generated by the blowing device firstly enters the first channel and the second channel, then enters the cavity of the box body through the vent holes, and the wind power entering the cavity can accelerate the air flow in the box body, so that heat generated by the working battery pack can quickly enter the first channel and the second channel through the vent holes, and finally is dissipated to the outside of the box body through the heat dissipation holes, and the heat dissipation effect of the fixing device is effectively improved; thereby solved the not good problem of fixing device's of iron phosphate lithium cell group radiating effect among the prior art.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the description below are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of the whole fixing device for a lithium iron phosphate battery pack according to an embodiment of the present invention.

Reference numerals are as follows:

1. a box body; 2. a first channel; 3. a second channel; 4. heat dissipation holes; 5. a vent hole; 6. a cover plate; 7. an opening; 8. a housing; 9. a fan; 10. an air inlet; 11. a through hole; 12. and (4) an internal threaded hole.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described in detail below. It is to be understood that the disclosed embodiments are merely exemplary of the invention, and are not intended to limit the invention to the precise embodiments disclosed. Based on the embodiments of the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

An object of the present embodiment is to provide a fixing device for a lithium iron phosphate battery pack; thereby solved the not good problem of fixing device's of iron phosphate lithium cell group radiating effect among the prior art.

Hereinafter, embodiments will be described with reference to the drawings. The embodiments described below do not limit the scope of the invention described in the claims. The entire contents of the configurations shown in the following embodiments are not limited to those required as solutions of the inventions described in the claims.

Referring to fig. 1, the embodiment provides a fixing device for a lithium iron phosphate battery pack, including a box body 1, a ventilation structure, a cover plate 6 and a blowing device, wherein a cavity for placing the lithium iron phosphate battery pack is arranged inside the box body 1, and the box body 1 has a port at one end and a closed structure around the box body; the ventilation structure is arranged in the cavity and comprises a first channel 2 fixedly connected with two inner side walls opposite to the box body 1 and a second channel 3 fixedly connected with two inner side walls opposite to the other pair of the box body 1, the first channel 2 and the second channel 3 are vertically crossed, the first channel 2 is communicated with the second channel 3, heat dissipation holes 4 are formed in the upper end surfaces of the first channel 2 and the second channel 3, and ventilation holes 5 are formed in the peripheral side walls of the first channel 2 and the second channel 3; the cover plate 6 is rotatably connected to the port of the box body 1, the cover plate 6 can seal the port, and an opening 7 is formed in the position, corresponding to the ventilation structure, of the cover plate 6; the blowing device is communicated with the ventilation structure, the blowing device comprises a shell 8 fixed on the outer side wall of the box body 1, a driving device fixed inside the shell 8 and a fan 9 in transmission connection with the driving device, the air outlet end of the fan 9 faces the ventilation structure, and an air inlet 10 is formed in the position, corresponding to the fan 9, of the shell 8.

According to the arrangement, firstly, the cover plate 6 is opened, the battery pack is reasonably placed in a cavity formed by the box body 1 and the ventilation structure, then the cover plate 6 is closed, and the battery pack can be firmly fixed in the box body 1 through the matching of the cover plate 6 and the box body 1, so that the battery pack is fixedly protected; meanwhile, the blowing device is started, wind power generated by the blowing device firstly enters the first channel 2 and the second channel 3, then enters the cavity of the box body 1 through the vent holes 5, the wind power entering the cavity can accelerate air flow in the box body 1, so that heat generated by the working battery pack can quickly enter the first channel 2 and the second channel 3 through the vent holes 5, and finally is dissipated to the outside of the box body 1 through the heat dissipation holes 4, and the heat dissipation effect of the fixing device is effectively improved; thereby solved among the prior art problem that the fixing device of iron phosphate lithium cell group's radiating effect is not good.

As an alternative embodiment, in the present embodiment, the first channel 2 and the second channel 3 are preferably of an integral structure.

As an alternative, the driving device in this embodiment is preferably a motor, and an output shaft of the motor is in transmission connection with a rotating shaft of the fan 9 through a coupling.

As an alternative embodiment, the top corners of the cover plate 6 are provided with through holes 11 for bolts to pass through.

In a more specific embodiment, the top corners of the upper end surface of the box 1 are provided with internal thread holes 12 for matching with bolts, and the internal thread holes 12 are arranged in one-to-one correspondence with the through holes 11. In this way, after the cover plate 6 is closed, the cover plate 6 can be firmly fixed to the case 1 by inserting the bolt through the through hole 11 and fitting the bolt into the female screw hole 12.

As an alternative embodiment, the material of the box 1 may be set according to a specific use environment, and in the present embodiment, the material of the box 1 is preferably an aluminum alloy.

In the description of the present invention, it is to be understood that the terms "longitudinal", "lateral", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are merely for convenience of description of the present invention, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A fixture for a lithium iron phosphate battery pack, comprising:

the lithium iron phosphate battery pack storage box comprises a box body, wherein a cavity for placing the lithium iron phosphate battery pack is formed in the box body, one end of the box body is provided with a port, and the periphery of the box body is of a closed structure;

the cover plate is rotatably connected to the port of the box body and can seal the port, and an opening is formed in the part of the cover plate corresponding to the ventilation structure;

2. The fixture for a lithium iron phosphate battery pack according to claim 1, wherein the first channel and the second channel are of a unitary structure.

3. The fixture for a lithium iron phosphate battery pack according to claim 1, wherein the driving device is a motor.

4. The fixing device for the lithium iron phosphate battery pack as claimed in claim 1, wherein through holes for bolts to pass through are formed at the top corners of the cover plate.

5. The fixing device for the lithium iron phosphate battery pack as claimed in claim 4, wherein the top corners of the upper end surface of the box body are provided with internal threaded holes for matching with the bolts, and the internal threaded holes and the through holes are arranged in a one-to-one correspondence manner.

6. The fixing device for the lithium iron phosphate battery pack according to claim 1, wherein the box body is made of aluminum alloy.